Israeli company claims invention of first“lab-grown”steak

河北乐亭第一中学 胡金莹

一提到美味牛排，很多人都会垂涎三尺。为了能够更好更多地满足人们的口味，以色列科学家研制出世界上首例在实验室中培育出来的牛排，这款牛排在肌肉、脂肪和纹理组织上和真牛排是惊人的相似。此外，这款牛排的另一优点就是其培育时间短、成本低。

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An Israeli company says it has produced the world's first steak “grown” in a laboratory.

Researchers from Tel Aviv-based Aleph Farms say they successfully created the meat using methods that do not harm animals.The company claims its scientific invention has the“true texture and structure of beef muscle tissue steak”.

Shulamit Levenberg is the chief scientific officer of Aleph Farms.She considers the company's product“clean meat” because it is grown in a clean,controlled setting and does not require the killing of an animal.

The process begins when scientists collect live cell tissue from real cows.Aleph Farms says this is easily completed without harming the animals.The cells are then fed nutrients to make them grow.

The cells are then combined through a process that uses 3-D technology to form realistic tissue.The company says small pieces of meat can be produced in as little as three weeks,with each costing about$50 to make.

Levenberg says animal meat grown in a controlled setting has mostlybeen limitedtosimple structures of one or two kinds of cell tissue.This has meant companies have struggled to produce a lab-grown meat that enjoys the similar texture,shape and taste of real steak.So far,cell-created meat development has been limited to ground meat.

Aleph Farms uses four different kinds of animal cells found in traditional cuts of meat.Asa result,it can produce a product containing similar properties of steak,including muscle,fat and connective tissues.The company considers this“the key toa product that will be closer to the beef that people crave”.

The company is still developing its technology in an effort tobring production costs down.The steak product is expected to be ready to sell within two years.Aleph Farms hopes the process can greatly reduce the amount of land,water and food resources necessary for traditional beef production methods.

Reading Check

1.What's the first step to create “lab-grown” steak?(no more than 10 words)_

2.What kind of meat can be created in a lab?(no more than 3 words)_____

3.Why do scientists regard the lab-grown meat as beef?(no more than 8 words)_

Language Study

I.Important vocabulary

1.be limited to局限于

2.so far到目前为止

3.as a result结果

4.the key to...……的关键

5.in an effort to do努力去做……

Ⅱ.Complete the following sentences in correct forms with the words given or with a proper word.

1.Researchers from Tel Aviv-based Aleph Farms say they successfully created the meat________(use)methods ________do not harm animals.

2.The company says small pieces of meat can be produced in as little as three weeks,with each ________(cost)about$50 to make.